Improved



. machine.

. and secured to a suitable base B.

Q, f UNITED-STATES PATENT OFFICE;

WILLIAM i. oAssELMA, `or VERNoN, NEW YORK.

IMPRovl-:D HuB-BoRER.

'Specification forniing part of etters Patent No. 10,882, dated May 9, 1854.

To all whom it may concern: i

Be it known that I, WILLIAM I. OAssELMAN, of Vernon,in the county of Oneida and State of New York, have invented a new and Improved Machine for Boring Taper l-Ioles in Hubs to Receive the Boxes; and I do hereby declare that the following is a full, clear, and

' exact description of the construction and operation of the same, reference being had to the annexed drawings, making apart of this specification, in which- Figure lis a side elevation of my iinproved Fig. 2 is a plan or top view of the same, the collar or socket to which the wheel is attached being bisected through its center. Fig. 3 is a section showing the manner' in which the cutter is operated in order to cut the taper hole. I

Similar letters of reference indicate correspondingparts in the several figures.

This invention relates to a new and improved machine for boring taper holes in hubs to receive the boxes', and it consists in having a cutter attached to one end of a le- Ver and having a pin on the opposite end of the lever, said pin working in an irregular 01' oblique slot in an adj ustable plate secured to a suitable bed. The fulcrum of the lever` or the pivot on which the lever works passes through a rod which has a screw-thread cut upon a certain portion of it and a nut working thereon. The rod and lever are operated or moved by turning the nut above mentioned, and the cutter on one end of the lever is made to pass through the hub in an oblique direction, Cutting a taper hole owing to the direction giventhe cutter by the pin on the opposite end of the lever working in the irregular or oblique slot in the adjustable plate. The hub rotates With the collar or nut, as will be presently shown.

To enable others skilled in the art to h make and use my invention, I will proceed to describe its construction and operation.

A, Figs. 1 and 2, represents aframe of Wood or metal constructed in any proper manner On the upper part of the frame A there is a shaft C in the form of a link or loop and having at one end a collar or socket D, with radial arms a projecting from it. The shaft O is provided with suitable journals, which work in bearings b b on the upper part of the frame. On the end of the shaft O opposite to the end on which the collar or socket D is attached there is a crank E.

F-is a rod which passes through the center of the collar or socket D, and through the center of the inner journal of the shaft O, and has a screw-thread c cut upon its inner end, as shown in all the figures. The opposite or outer end of the rod F has a slot cut in it, in which a portion of a lever G fits a fulcrum or pivot d, on which the lever turns or works, passing through the end of the rod.

I-I is a bed plate or platform constructed of wood or metal and supported at a suitable height by a pedestal I. (See Fig. 1.) On the Vupper surface of this bed plate or platform there is secured by set-screws e e a plate J, having an irregular or oblique slot f cut in it. (See Figs. 2 and 3.)

On the outer side of the lever G there is a pin g, projecting downward from the lever,

formed of two halves jj', one of which j' has a screw thread which fits over the screw-thread c on the rod F. The two halves j j' are secured together by a spring-catch lc.

Operation: The wheel represented by M is placed against the socket or collar D and the spokes are secured to the radial arms a by clamps or in any proper manner. The inner end of the hub, represented by N, fits in the socket or collar, 'as shown by the dotted lines in Figs. l and 2 and by solid lines in Fig. 3. The wheel being thussecuredto the collar or socket, the rod F is passed through the mandrel-hole in the hub, and thetwo halves of the nut are brought together and secured by the spring-catch Ik. Motion is then given the crank E, and the shaft C, nut L, and collar or socket D, with the wheel attached, rotate the nut L, drawing the rod F and lever G through the mandrel-hole iu the hub, and the cutter h,

(Shown in Figsrl and`2.) i

at the inner end of the lever G, Cutting the taper hole in the hub owing to the direotion given it by' the pin d, Working in the slot in the plate J, (see Fig. 2,) the dotted lines showing the position of the lever G and outter h When the cutter has reaohed the inner end of the hub. The taper hole may be out larger or smaller by varying' the position of the plate J on the bed or platform H. For instance, when the plate J is in line With the center of the hub N the diameter of the taper hole will be of a size oorresponding to the obliquity of the slot in the plate J; but if the plate J is adjusted so as to be out of line With the center of the hub the diameter of the taper hole will be proportionably inoreased. When the taper hole is bored, the

p nut L is opened and the rod F foroed backward by hand, the Wheel detaohed from the oollar and socket, and another one attached and similarly operated upon.

I-Iaving thus described my invention, what I olaim as new, and desire to secure by Letters Patent, is-

Boring taper holes through hubs by means of a lever G, seoured by a pivot d to a rod F, Whioh is drawn through the mandrel-hole of the hub, said lever G having a cutter h at v movement to the cutter as it passes through the hub, as herein shown and desoribed.

VILLIAM I. CASSELMAN.

Witnesses:

S. I-I. WALES, J No. W. HAMILTON. 

